Personal perspective of an MSCA Fellowship - CERN Indico
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Personal perspective of an MSCA Fellowship
Dr. Sergey Vinogradov
Senior Research Scientist
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia
Division of Solid State Physics
National Research Nuclear University «MEPhI», Moscow, Russia
Laboratory of Silicon Photomultipliers
CERN CMS Collaboration
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 1
Outline
◙ Introduction
Photon detection and detectors
― Silicon Photomultiplier (SiPM)
Dr. Vinogradov
◙ My MSCA project: “SiPM in-depth”
◙ My MSCA fellowship outcomes
◙ My lessons and advices
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 2
Flux of photons – stochastic process
Number of photons in space and time – random variable
Pr(N = n | r, dt)
Probability distribution of
number of photons in space
◙ Probability distribution Pr(N = n | dr, t)
of a random variable fully
characterize the random variable
Probability distribution of
number of photons in time
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 3
Detection of photons – stochastic process
Detector response (photoelectrons) – random variable
Pr(N = n)
Probability distribution of
detected photons
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 4
Introduction
ФОТО
◙ Moscow State University, (MSc - 1981)
◙ Lebedev Physical Institute - R&D of
photon detectors & SiPM (1982 – now;
PhD - 1992)
◙ IT management “for food” – to survive in
the Russian’ 1990s
◙ Amplification Technologies – R&D of Dr. Sergey Vinogradov
vin@sci.lebedev.ru
SiPM, Russian Lab (2003-2010)
◙ QUASAR group – MSCA fellowship Senior Scientist
(2013-2016) Senior SPIE member
◙ MEPhI - Statistics of SiPM (2016-) Senior IEEE member
◙ CERN CMS – Calibration of SiPM Senior Marie Curie
(2017-) fellow
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 5
Development of novel analytical and experimental approaches for an
in-depth characterization and optimization of Silicon Photomultipliers
FP7-PEOPLE-2012-IIF project “SiPM in-depth”
Sep. 2013 – Nov. 2016, €324K
Main objectives
- Transfer of knowledge on SiPM technology to EU/UK host institutions,
- Advanced R&D to support SiPM-related projects in EU/UK,
- Collaboration between SiPM communities worldwide.
Main results
- Seminars in CI, MSCA schools
- Experimental Setups: CI (advanced SiPM studies) & CERN (BLM studies)
- Simulation, Modeling, Analysis
- Training on SiPM R&D
• L. Devlin, PhD student, CI
• M. Kastriotou, PhD student, CERN
• Dr. E. Nebot, PDRA, CERN
- 10 papers
- 44 presentations
- 30+ events worldwide
- SiPM BLM @AUSTRALIAN SYNCHROTRON (2016)
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 6
BLM with Cherenkov fiber
BLM with PMT BLM with SiPM
X.-M. Maréchal et al., DIPAC2009 (SACLA / SPRING 8) D. Di Giovenale et al., NIMA, 2011 (FERMI@Elettra, Synchrotrone Trieste)
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 7
SiPM response & performance for BLM
◙ Information about losses to be determined
Area of pulse → photons → particles per loss event (PNR)
Arrival time of pulse → loss location (Time Res)
Discrimination of losses (localized / distributed locations)
― Pulse pair resolution ( pulse FWHM)
― Recovery transients (dead time ~ recovery time)
Arrival time
resolution
Pulse pair Photon
resolution number
resolution
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 8
MSCA general outcomes
◙ Professional qualification & experience of MSCA:
Top-level projects, R&Ds, infrastructure
International collaboration & networking
◙ Communications & contacts in-person (network!)
◙ Information on relevant projects and R&Ds
Key persons
Requirements
Problems
◙ Involvement in professional communities / discussions
◙ Possibility to offer your expertise / ideas / solutions
◙ Understanding of employment situation / jobs
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 9
My actual outcomes
◙ Member of Scientific Board of the LPI Solid State Physics Division
◙ Expert of FAST – “Fast Advanced Scintillator Timing” COST action of European
Cooperation in the field of Scientific and Technical Research (2014-2018)
◙ Member of Expert Board of “SENSE – a roadmap for the ideal low light level sensor
development” project of the EC FET-Open Horizon 2020 (2016 – 2019)
◙ Co-organizer/co-chair of Brainstorming Workshop on Factors influencing the timing
resolution of SiPMs, Calvi, Corsica, France, May 07-08, 2015.
◙ Co-organizer/convener/invited expert of the (1st!) International Conference on the
Advancement of Silicon Photomultipliers, 11-15 June 2018, Schwetzingen, Germany
(http://icasipm.org)
◙ Collaboration with MEPhI on SiPM physics, statistics, metrology, and applications
◙ Collaboration with CERN on SiPM calibration at radiation degradation
◙ Collaboration with KETEK, Germany, on SiPM R&D and metrology
◙ Professorship at the Insubria University, Como, Italy on SiPM statistics for PhD & ESR
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 10My advices
◙ We are in R&Ds to meet unknown & unresolvable =>
◙ Be happy with problems and challenges!
◙ Be systematic to identify a whole challenge:
◙ Goal - at the edge of your performance!
◙ Problem – why such a valuable goal is not achieved yet?
◙ State-of-art – all about known and resolvable for that challenge
REMARK: a lack of systematic knowledge on that is typical for PhDs
▪ Be creative to generate new ideas and solutions
▪ What if nothing happens? How to be creative?!
ADVICE: exchange the problems with your peers rather than success stories
look at “similar” problems and solutions/tools in other areas
look at synergy with your peers to resolve your challenges
REMARK to Carsten: QUASARthon => QUASAR-HAKAthon
E.g.: “Accelerator-on-chip”, “Ideal photon detector”, “Ideal beam profiler”...
Sergey Vinogradov AVA Careers Workshop, 27 October 2020 11The end
Thank you for your attention!
Questions?
Objections?
Opinions?
…
vin@lebedev.ru
Sergey Vinogradov Silicon Photomultipliers Single Photon Detection Workshop ALBA Synchrotron, Barcelona 10 July 2019 12“SiPM in-depth” knowledge transfer
1. Training in form of Cockcroft Institute Seminars (Dec. 2013 - May 2014), covering all
essential areas required for experimental studies, characterization, simulation, and
implementation of SiPM technology:
• Silicon Photomultipliers: physics, concepts, and designs
• Silicon Photomultipliers: application areas and large projects
• Silicon Photomultipliers: measurement and characterization methodology
• Silicon Photomultipliers: probabilistic modelling and analysis
• Silicon Photomultipliers: state-of-art, challenges, and perspectives
2. Development of experimental setups for SiPM studies at the CI and CERN adapted for
comprehensive characterization of SiPM performance in Beam Loss Monitoring (high
intensity arbitrary waveform light signals):
Setup for precision measurements of transient
• Measurements of transient SiPM response (CI Optics Lab) SiPM response to intense light pulses
• Fast timing measurements of 60 ps double pulse response (CERN BI Lab) (Cockcroft Institute Optics Lab)
3. Training on SiPM measurement and characterization to the QUASAR Group members
involved in R&D on Beam Loss Monitoring systems with SiPM:
• L. Devlin, PhD student, CI
• M. Kastriotou, PhD student, CERN
• Dr. E. Nebot, PDRA, CERN
4. Training on modeling of SiPM response and performance for the same QUASARs:
• Analytical probabilistic models of SiPM response based on transformation of
probability distribution of random variables in stochastic processes of photodetection
• Numerical simulations of these stochastic processes
• Processing of experimental data Setup for fast timing measurement of SiPM
response and recovery at 60 ps double laser pulses
(CERN, Beam Instrumentation Department Lab)
Sergey Vinogradov QUASAR group 25 November 2015 13“SiPM in-depth” publications
1. S. Vinogradov, L. Devlin, E. Nebot del Busto, M. Kastriotou, and C. P. Welsch “Challenges of arbitrary waveform
signal detection by SiPM in beam loss monitoring systems with Cherenkov fibre readout”, Proc. of Science (PoS
SISSA) -4 p. (accepted) Nov. 2015.
2. S. Vinogradov, “Performance of Silicon Photomultipliers in photon number and time resolution”, Proc. of Science
(PoS SISSA) -8 p. (submitted) Oct. 2015.
3. E. Engelmann, S. Vinogradov, E. Popova, F. Wiest, P. Iskra, W. Gebauer, S. Löbner, Ch. Dietzinger, T. Ganka, R.
Fojt, and W. Hansch, “Extraction of Activation Energies from Temperature Dependence of Dark Currents of SiPM”,
Proc. of ICPPA-2015, -5p. (accepted) Oct. 2015.
4. S. Vinogradov, “The Silicon Photomultiplier Concept and Design Development”, Astroparticle Physics European
Consortium News, -4p. Apr. 2015; http://www.appec.org/index.php?view=article&id=119
5. S. Vinogradov, 'Analytical model of SiPM time resolution and order statistics with crosstalk' Nucl. Instr. Methods A
(2015), pp. 229-233; http://dx.doi.org/10.1016/j.nima.2014.12.010.
6. S. Vinogradov, A. Arodzero, R.C. Lanza, and C.P. Welsch, 'SiPM response to long and intense light pulses', Nucl.
Instr. Methods A (2015), pp. 148-152; http://dx.doi.org/10.1016/j.nima.2014.11.079.
7. E. Popova, P. Buzhan, A. Pleshko, S. Vinogradov, A. Stifutkin, A. Ilyin, D. Besson, and R. Mirzoyan, 'Amplitude
and Timing properties of a Geiger discharge in a SiPM cell', Nucl. Instr. Methods A (2015), pp. 270-274;
http://dx.doi.org/10.1016/j.nima.2014.12.050.
8. S. Vinogradov, “New approach to calibration of low gain PMTs and SiPMs using transit time histograms,” Proc. of
IEEE Nuclear Science Symposium and Medical Imaging Conference 2013, pp. 1–8.
http://dx.doi.org/10.1109/NSSMIC.2013.6829596
9. S. Vinogradov, A. Arodzero, and R. C. Lanza, “Performance of X-ray detectors with SiPM readout in cargo
accelerator-based inspection systems,” Proc. of IEEE Nuclear Science Symposium and Medical Imaging Conference
2013, 2013, pp. 1–6. http://dx.doi.org/10.1109/NSSMIC.2013.6829597
10. Arodzero, A. Bolozdynya, R. C. Lanza, A. Murokh, V. Palermo, A. Pudikov, J. Rosenzweig, S. Ulin, S. Vinogradov,
and A. Zimin, 'World Wide Student Laboratory: Global Educational Infrastructure for Remote Experimentation',
Proc. of ICEE/ICIT-2014, -8p., 2014; http://ineer2014.rtu.lv/sites/default/files/Paper_132.pdf
Sergey Vinogradov QUASAR group 25 November 2015 14You can also read
